Question: The hybridisations of the atomic orbitals of nitrogen in $\mathrm{NO}_{2}^{-}, \mathrm{NO}_{2}^{+}$and $\mathrm{NH}_{4}^{+}$respectively are.
$\mathrm{sp}^{3}, \mathrm{sp}^{2}$ and $\mathrm{sp}$
$\mathrm{sp}, \mathrm{sp}^{2}$ and $\mathrm{sp}^{3}$
$\mathrm{sp}^{3}, \mathrm{sp}$ and $\mathrm{sp}^{2}$
$\mathrm{sp}^{2}, \mathrm{sp}$ and $\mathrm{sp}^{3}$
Correct Option: , 4
Solution:
